CN102787534A - Light frame-subgrade pile-board structure in karst areas - Google Patents

Light frame-subgrade pile-board structure in karst areas Download PDF

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Publication number
CN102787534A
CN102787534A CN2012103222796A CN201210322279A CN102787534A CN 102787534 A CN102787534 A CN 102787534A CN 2012103222796 A CN2012103222796 A CN 2012103222796A CN 201210322279 A CN201210322279 A CN 201210322279A CN 102787534 A CN102787534 A CN 102787534A
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CN
China
Prior art keywords
foundation pile
roadbed
light
karst
rigidly
Prior art date
Application number
CN2012103222796A
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Chinese (zh)
Inventor
姚裕春
李安洪
唐第甲
庞应刚
曾永红
吴沛沛
丁兆锋
陈裕刚
赵青海
Original Assignee
中铁二院工程集团有限责任公司
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Application filed by 中铁二院工程集团有限责任公司 filed Critical 中铁二院工程集团有限责任公司
Priority to CN2012103222796A priority Critical patent/CN102787534A/en
Publication of CN102787534A publication Critical patent/CN102787534A/en

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Abstract

A light frame-subgrade pile-board structure in karst areas aims to solve the problems of subsidence and poor stability of high-speed railway subgrades in the karst areas and overcome the defects of difficulty in treating and detecting karst groundwork. The light frame-subgrade pile-board structure comprises foundation piles (1), joists (2), a pile cap (3), transverse tie beams (4) and longitudinal tie beams (5), wherein the foundation piles (1) are arranged in rows at intervals transversely and in columns at intervals longitudinally; the joists (2) are transversely arranged at the tops of the foundation piles (1) and in rigid connection with the same; the pile cap (3) is arranged at the tops of the foundation piles (1) or the joists (2) and in rigid connection with the foundation piles (1) or the joists (2); the transverse tie beams (4) are arranged among the foundation piles (1) in the same rows and in rigid connection with the same; and the longitudinal tie beams (5) are arranged among the foundation piles (1) in the same columns and in rigid connection with the same.

Description

Karst region light-duty framework roadbed stake plated construction structure
Technical field
The present invention relates to the railroad bridge structure, particularly a kind of karst intense development, solution cavity of being applicable to is the karst region light-duty framework roadbed stake plated construction of empty solution cavity.
Background technology
China's karst features distribute extensively, area is big.Wherein maximum with the shared area in Guangxi, Guizhou and east, Yunnan, be one of maximum in the world karst.The southwest high-speed railway has begun a large amount of construction, and high-speed railway has all proposed new requirement to high ride, stability, the durability of circuit, and satisfy the need base base total settlement, settlement after construction and relative settlement amount all have strict restriction.The karst area soil subgrade is prone to subgrade defects such as roadbed settlement, karst collapse take place in operation, with the serious harm traffic safety.The composite foundation processing degree of depth is limited and can't handle the solution cavity in the basement rock; The slip casting processing method is difficult to control quality, can not guarantee effectively, and can't detect treatment effect; If adopt bridge construction, when embankment highly less when being positioned at the station design difficulty comparatively, and cost is higher.Therefore, a kind of intensity of active demand is high, rigidity is big, stability and good endurance and the simple novel road structure of construction technology, and meets environmental protection requirement.
Summary of the invention
Technical problem to be solved by this invention provides a kind of karst region light-duty framework roadbed stake plated construction structure, to solve the sedimentation and the stability problem of karst area high-speed railway subgrade, avoids the karst ground to be difficult for difficult problems such as processing and detection.
The technical solution adopted for the present invention to solve the technical problems is following:
Karst region of the present invention light-duty framework roadbed stake plated construction structure is characterized in that it comprises: foundation pile, along the railway lateral separation in a row, be longitudinally spaced into row setting; Joist laterally places foundation pile in a row top and is rigidly connected with it; Bearing sheet places foundation pile or joist top and is rigidly connected with it; Straining beam is arranged at arranging between the foundation pile and being rigidly connected with it; Vertical binder is arranged between the same column row foundation pile and is rigidly connected with it.
The invention has the beneficial effects as follows, solved the sedimentation and the stability problem of karst area high-speed railway subgrade, avoided the karst ground to be difficult for difficult problems such as processing and detection.This roadbed combining structure has strong, the good stability, sturdy and durable of globality, is out of shape advantages such as little, and construction technology is simple, can effectively reducing the construction costs, and compliance with environmental protection requirements, have wide popularizing application prospect.
Description of drawings
This manual comprises following two width of cloth accompanying drawings:
Fig. 1 is the cross-sectional drawing of roadbed stake plated construction structure between the light-duty framework region in karst region of the present invention;
Fig. 2 is the skiagraph of roadbed stake plated construction structure between the light-duty framework region in karst region of the present invention.
Title of member shown in the figure and corresponding mark: foundation pile 1, joist 2, bearing sheet 3, straining beam 4, vertical binder 5, roadbed filling soil 6 is empty solution cavity in the above-ground route 7, dotted line.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
See figures.1.and.2, karst region of the present invention light-duty framework roadbed stake plated construction structure, it comprises: foundation pile 1, along the railway lateral separation in a row, be longitudinally spaced into row setting; Joist 2 laterally places foundation pile in a row 1 top and is rigidly connected with it; Bearing sheet 3 places foundation pile 1 or joist 2 tops and is rigidly connected with it; Straining beam 4 is arranged at arranging between the foundation pile 1 and being rigidly connected with it; Vertical binder 5 is arranged between the same column row foundation pile 1 and is rigidly connected with it.The present invention bears the vertical gravity that roadbed filling soil 6, train and track structure produce through foundation pile 1; Form the space frame system through foundation pile 1, straining beam 4, vertical binder 5 and bear train horizontal loading and temperature load; Avoided the roadbed influence of pressure of banketing to the karst ground; Straining beam 4, vertical binder 5 are rigidly connected with foundation pile 1, have increased the horizontal and vertical rigidity of foundation pile, can effectively alleviate the influence of karst ground collapse to foundation pile stability.This structure has solved the sedimentation and the stability problem of karst area high-speed railway subgrade, has avoided the karst ground to be difficult for difficult problems such as processing and detection.This roadbed combining structure has strong, the good stability, sturdy and durable of globality, is out of shape advantages such as little, and construction technology is simple, can effectively reducing the construction costs, and compliance with environmental protection requirements, have wide popularizing application prospect.
Said foundation pile 1, joist 2, bearing sheet 3, straining beam 4, vertical binder 5 all adopt steel concrete to build, and it is interior and be attached thereto into an integral body that foundation pile 1 vertical main reinforcement need stretch into joist 2 or bearing sheet 3.
Said bearing sheet 3 per 3 ~ 5 strides one, at joist 2 middle parts one place, shrinkage joint is set between adjacent, and the filling of pitch plank is adopted at the shrinkage joint.On the bearing sheet 3 AT STATION switch area to establish length be that the roadbed filling of 1~3m bankets 6, interval roadbed can not established roadbed filling soil 6
See figures.1.and.2, said straining beam 4, vertical binder 5 are arranged in the place, ground.When longitudinal rigidity is not enough, can between same column row foundation pile 1, be provided with the second horizontal row binder that is rigidly connected with it at vertical binder more than 5.
The above some principle that roadbed stake plated construction is constructed between the light-duty framework region in karst region of the present invention that just explain through diagrams; Be not be to the present invention be confined to shown in described concrete structure and the scope of application in; So every the modify and equivalent that might be utilized, the claim that all belongs to the present invention and applied for.

Claims (7)

1. the light-duty framework roadbed in karst region stake plated construction structure is characterized in that it comprises: foundation pile (1), along the railway lateral separation in a row, be longitudinally spaced into row setting; Joist (2) laterally places foundation pile in a row (1) top and is rigidly connected with it; Bearing sheet (3) places foundation pile (1) or joist (2) top and is rigidly connected with it; Straining beam (4) is arranged at arranging between the foundation pile (1) and being rigidly connected with it; Vertical binder (5) is arranged between same column row's foundation pile (1) and is rigidly connected with it.
2. karst region as claimed in claim 1 light-duty framework roadbed stake plated construction structure is characterized in that: the vertical main reinforcement of said foundation pile (1) need stretch in joist (2) or the bearing sheet (3) and be attached thereto into an integral body.
3. karst region as claimed in claim 1 light-duty framework roadbed stake plated construction structure, it is characterized in that: said bearing sheet (3) per 3 ~ 5 strides one, at joist (2) middle part one place, shrinkage joint is set between adjacent, and the bituminous concrete filling is adopted at the shrinkage joint.
4. karst region as claimed in claim 1 light-duty framework roadbed stake plated construction structure is characterized in that: on the said bearing sheet (3) AT STATION switch area to establish length be the roadbed filling of 1~3m banket (6).
5. karst region as claimed in claim 1 light-duty framework roadbed stake plated construction structure is characterized in that: said straining beam (4) is arranged in the place, ground.
6. karst region as claimed in claim 1 light-duty framework roadbed stake plated construction structure is characterized in that: said vertical binder (4) is arranged in the place, ground.
7. karst region as claimed in claim 1 light-duty framework roadbed stake plated construction structure is characterized in that: more than the said vertical binder (5), between same column row's foundation pile (1), be provided with the vertical binder of second row that is rigidly connected with it.
CN2012103222796A 2012-09-02 2012-09-02 Light frame-subgrade pile-board structure in karst areas CN102787534A (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103866781A (en) * 2012-12-12 2014-06-18 贵阳铝镁设计研究院有限公司 Construction method and construction structure of fractional decomposition tank foundation using pile foundation
CN103866686A (en) * 2014-02-25 2014-06-18 广东省公路勘察规划设计院股份有限公司 Key-joint bearing platform and landscape pier comprising same and being used for karst geology
CN104631221A (en) * 2015-02-17 2015-05-20 铁道第三勘察设计院集团有限公司 High-speed railway widening subgrade structure
CN105544311A (en) * 2016-01-17 2016-05-04 中铁二院工程集团有限责任公司 Water-rich foundation frost-heaving-resistant ballastless track embankment structure
CN105696427A (en) * 2016-04-06 2016-06-22 中铁第四勘察设计院集团有限公司 Construction method for reinforcing newly-built railway karst foundation and roadbed structure thereof
CN106283972A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering single line embankment location pile foundation combined type support rail girder construction
CN106283969A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail girder construction
CN108589718A (en) * 2018-03-30 2018-09-28 中交路桥北方工程有限公司 Piles in Karst Region base construction method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998036130A1 (en) * 1997-02-14 1998-08-20 Nippon Pillar Packing Co., Ltd. Structure of pile foundation
CN1916277A (en) * 2006-09-07 2007-02-21 铁道第二勘察设计院 Track base without broken stones, and building method
CN201125355Y (en) * 2007-11-23 2008-10-01 中铁二院工程集团有限责任公司 Deep collapsible loess road bed foundation structure
CN102174810A (en) * 2011-03-10 2011-09-07 中铁二院工程集团有限责任公司 Foundation reinforcement structure of construction refuse dump on soft soil
CN102425082A (en) * 2011-09-09 2012-04-25 中铁二院工程集团有限责任公司 Subgrade strengthening structure for highly karstified station turnout zone on high-speed railway
CN202323568U (en) * 2011-11-16 2012-07-11 中铁二院昆明勘察设计研究院有限责任公司 Pipe pile network/beam structure strengthening high-speed railway soft soil subgrade
CN102619206A (en) * 2012-04-06 2012-08-01 中铁二十二局集团第三工程有限公司 Foundation platform structure of bare rock and karst pile in deep water
CN202830954U (en) * 2012-09-02 2013-03-27 中铁二院工程集团有限责任公司 Karst area light frame roadbed pile plate structure construction

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998036130A1 (en) * 1997-02-14 1998-08-20 Nippon Pillar Packing Co., Ltd. Structure of pile foundation
CN1916277A (en) * 2006-09-07 2007-02-21 铁道第二勘察设计院 Track base without broken stones, and building method
CN201125355Y (en) * 2007-11-23 2008-10-01 中铁二院工程集团有限责任公司 Deep collapsible loess road bed foundation structure
CN102174810A (en) * 2011-03-10 2011-09-07 中铁二院工程集团有限责任公司 Foundation reinforcement structure of construction refuse dump on soft soil
CN102425082A (en) * 2011-09-09 2012-04-25 中铁二院工程集团有限责任公司 Subgrade strengthening structure for highly karstified station turnout zone on high-speed railway
CN202323568U (en) * 2011-11-16 2012-07-11 中铁二院昆明勘察设计研究院有限责任公司 Pipe pile network/beam structure strengthening high-speed railway soft soil subgrade
CN102619206A (en) * 2012-04-06 2012-08-01 中铁二十二局集团第三工程有限公司 Foundation platform structure of bare rock and karst pile in deep water
CN202830954U (en) * 2012-09-02 2013-03-27 中铁二院工程集团有限责任公司 Karst area light frame roadbed pile plate structure construction

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103866781A (en) * 2012-12-12 2014-06-18 贵阳铝镁设计研究院有限公司 Construction method and construction structure of fractional decomposition tank foundation using pile foundation
CN103866686A (en) * 2014-02-25 2014-06-18 广东省公路勘察规划设计院股份有限公司 Key-joint bearing platform and landscape pier comprising same and being used for karst geology
CN104631221A (en) * 2015-02-17 2015-05-20 铁道第三勘察设计院集团有限公司 High-speed railway widening subgrade structure
CN105544311A (en) * 2016-01-17 2016-05-04 中铁二院工程集团有限责任公司 Water-rich foundation frost-heaving-resistant ballastless track embankment structure
CN105696427A (en) * 2016-04-06 2016-06-22 中铁第四勘察设计院集团有限公司 Construction method for reinforcing newly-built railway karst foundation and roadbed structure thereof
CN105696427B (en) * 2016-04-06 2017-11-03 中铁第四勘察设计院集团有限公司 The construction method and its road structure of a kind of consolidation process newly built railway karst foundation
CN106283972A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering single line embankment location pile foundation combined type support rail girder construction
CN106283969A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail girder construction
CN106283972B (en) * 2016-09-15 2017-10-31 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering single line embankment location pile foundation combined type support rail girder construction
CN108589718A (en) * 2018-03-30 2018-09-28 中交路桥北方工程有限公司 Piles in Karst Region base construction method

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Application publication date: 20121121

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